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Finding the Fourth Proportional to 556,425.18, 767,871.09 and 301,776.30

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Solution

The fourth proportional to 556,425.18, 767,871.09 and 301,776.30 is: 416,453.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,425.18 : 767,871.09 = 301,776.30 : x
  2. Step 2: Convert to fraction form
    556,425.18/767,871.09 = 301,776.30/x
  3. Step 3: Cross multiply
    556,425.18x = 767,871.09 × 301,776.30
  4. Step 4: Simplify right side
    556,425.18x = 231,725,296,417.17
  5. Step 5: Solve for x
    x = 231,725,296,417.17/556,425.18
  6. Step 6: Final answer
    x = 416,453.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.